申请人:Bezwada S. Rao
公开号:US20060173065A1
公开(公告)日:2006-08-03
The present invention relates to a compound of the formula:
R-AR—O—Y—R′
Wherein R represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid, —NO
2
, —NH
2
, —NHCOCH
3
, and —NH—Y—R′, which is attached directly to AR or attached through an aliphatic chain. The carboxylic acid moiety in R includes but is not limited to the following carboxylic acids: benzoic acids, cinnamic acids, ferulic acid, caffeic acid, syringic acid, salicylic acid, vanillic acid, phenylacetic acids, phenylpropionic acids, and sinapinic acid. -AR—O— is a biologically active phenolic moiety comprising 1 to 6 substituted or unsubstituted aryl rings that are directly bonded to each other, fused together, or joined through a linking group. Y represents a member selected from:
—COCH
2
O— (glycolic ester moiety)
—COCH(CH
3
)O— (lactic ester moiety)
—COCH
2
OCH
2
CH
2
O— (dioxanone ester moiety)
—COCH
2
CH
2
CH
2
CH
2
CH
2
O— (caprolactone ester moiety)
—CO(CH
2
)
m
O— where m is an integer between 2-4 and 6-24 inclusive
—COCH
2
O(CH
2
CH
2
O)
n
— where n is an integer between 2 and 24, inclusive; and R′ is either hydrogen or a benzyl or an alkyl group, the alkyl group being either straight-chained or branched. The resultant functionalized phenolic compounds, used singly or in combinations, and their polymers have controllable degradation profiles, releasing the active component over a desired time range. The polymers are useful for biomaterials and biomedical devices, wherein said biologically active phenolic moiety is a residue of a phenolic compound.
本发明涉及一种化合物,其化学式为:R-AR—O—Y—R′,其中R代表从H、烷氧基、苯甲氧基、醛基、卤素、羧酸、—NO2、—NH2、—NHCOCH3和—NH—Y—R′中选择的一个或多个成员,该成员直接附着在AR上或通过脂肪链连接。R中的羧酸基团包括但不限于以下羧酸:苯甲酸、肉桂酸、阿魏酸、咖啡酸、槲皮酸、水杨酸、香草酸、苯乙酸、苯丙酸和芥子酸。-AR—O—是一个生物活性的酚基团,包括1到6个取代或未取代的芳香环直接连接、融合或通过连接基团连接的环。Y代表从以下成员中选择:—COCH2O—(乙二醇酯基团)—COCH(CH3)O—(乳酸酯基团)—COCH2OCH2CH2O—(二氧环酮酯基团)—COCH2CH2CH2CH2CH2O—(己内酯酯基团)—CO(CH2)mO—其中m是2-4和6-24之间的整数—COCH2O(CH2CH2O)n—其中n是2到24之间的整数;R′是氢或苄基或烷基,烷基可以是直链或支链。所得的功能化酚类化合物单独或组合使用,其聚合物具有可控的降解特性,释放所需时间范围内的活性成分。该聚合物对于生物材料和生物医学器械有用,其中所述的生物活性酚基团是酚类化合物的残留物。